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3 years ago

9

You are looking at two area rug for your bedroom .one is a square with a side length of 6.3 feet.the other is a rectangle that i

s 4.8 feet by 8.2 feet .which rug covers the greater area

2 answers:

Svet_ta [14]3 years ago

6 0

The square one has an area of 6.3×6.3, or 39.69ft²
The rectangle one has an area of 4.8×8.2, or 39.36ft²

The square one has a greater area

Sonbull [250]3 years ago

5 0

the answer was 24 feet equal to answer

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A new bank costumer with 2500 dollars wants to open a money market account. The bank is offering a simple interest rate of 1.5 p

padilas [110]

Answer:

Step-by-step explanation:

The formula for determining simple interest is expressed as

I = PRT/100

Where

I represents interest paid on the amount deposited.

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From the information given,

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3 years ago

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The owner of a retail store is tracking his inventory for an annual report. The graph shows the remaining inventory for a partic

aliina [53]

Y = -2.8x +69.4

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2 years ago

The least-squares regression model y =−3.4+5.2x and correlation coefficient r=−0.66 were calculated for a set of bivariate data

Makovka662 [10]

Answer:

$r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}$

For this case the value of r = -0.66

Now we can calculate the determination coeffcient:

$r^2 = (-0.66)^2 = 0.4356$

And then we can conclude that 43.56% of the variation in y can be explained by the explanatory variable

And then 100-43.56 = 56.44 % of the variation in y that cannot be explained by the explanatory variable

Step-by-step explanation:

For this case we need to calculate the slope with the following formula:

$m=\frac{S_{xy}}{S_{xx}}$

Where:

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}$

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}$

$\bar x= \frac{\sum x_i}{n}$

$\bar y= \frac{\sum y_i}{n}$

And we can find the intercept using this:

$b=\bar y -m \bar x$

And the model obtained for this case is:

$y = -3.4 +5.2 x$

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$r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}$

For this case the value of r = -0.66

Now we can calculate the determination coeffcient:

$r^2 = (-0.66)^2 = 0.4356$

And then we can conclude that 43.56% of the variation in y can be explained by the explanatory variable

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3 years ago

What is the difference between -4=7 vs 5=5

KiRa [710]

Answer:

{-4 = 7, 5 = 5} = {False, True}

Step-by-step explanation:

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3 years ago

Please help me !!

kherson [118]

The second answer is D) it will increase 8 times

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3 years ago

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